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EP0682208A1 - Dispositif de fixation d'une lampe sur un réflecteur de véhicule automobile - Google Patents

Dispositif de fixation d'une lampe sur un réflecteur de véhicule automobile Download PDF

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Publication number
EP0682208A1
EP0682208A1 EP95106639A EP95106639A EP0682208A1 EP 0682208 A1 EP0682208 A1 EP 0682208A1 EP 95106639 A EP95106639 A EP 95106639A EP 95106639 A EP95106639 A EP 95106639A EP 0682208 A1 EP0682208 A1 EP 0682208A1
Authority
EP
European Patent Office
Prior art keywords
lamp
holding element
base
legs
positioning tab
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95106639A
Other languages
German (de)
English (en)
Other versions
EP0682208B1 (fr
Inventor
Berthold Döring
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hella GmbH and Co KGaA
Original Assignee
Hella KGaA Huek and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hella KGaA Huek and Co filed Critical Hella KGaA Huek and Co
Publication of EP0682208A1 publication Critical patent/EP0682208A1/fr
Application granted granted Critical
Publication of EP0682208B1 publication Critical patent/EP0682208B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F21S41/196—Wire spring attachments

Definitions

  • the invention relates to a device for arranging a lamp on a reflector of a vehicle headlamp, with an opening for receiving the lamp, with a surface directed counter to the direction of insertion of the lamp, between which and the base of the lamp there are three contact points which form the tips form a triangle surrounding the lamp axis and of which a contact point is assigned to a positioning tab projecting radially outward from the base, which can be inserted into a recess, and with a resilient holding element through which the base, with its side diametrically opposite the positioning tab, counteracts the lamp axis radially a fixing element can be pressed.
  • Such a device for arranging a lamp on a reflector of a vehicle headlight is known from DE-GM 91 04 169.
  • the lamp can be inserted into an annular lamp holder made of plastic.
  • the lamp holder is attached to the back of a reflector made of sheet metal and surrounds an opening made in the reflector.
  • the lamp can be passed through the opening of the reflector with a glass bulb receiving a filament and can be placed against a surface directed against the direction of insertion of the lamp with a flange surrounding the base.
  • the flange of the base is in contact with the surface at three contact points, which are the tips of an equilateral triangle, through the center of gravity of which the lamp axis runs approximately.
  • One of the three contact points is assigned to a positioning tab, which projects radially outward from the flange. Through the positioning tab, through which the Positioning flap adjacent contact point and the lamp axis runs an axis of symmetry of the triangle.
  • the positioning tab is formed by two recesses made in the flange of the base, each of which has two sides perpendicular to one another. One of the sides of the recesses adjoins the positioning tab, while the other two sides of the recesses run on a common line.
  • the opening in the lamp holder is adapted to the flange of the base and the positioning tab cut free from the flange.
  • a resilient holding element which is a resilient tongue formed on the lamp support, which rests with its free end under pretension against the free edge of the positioning tab and with a spring force which is in the direction of the Axis of symmetry and to the lamp axis runs, presses the flange of the base against the arc-shaped inside of the opening of the lamp holder.
  • a second resilient tongue molded onto the lamp support, which can be placed under tension against one of the two narrow side surfaces of the positioning tab that run parallel to one another and to the axis of symmetry. This is intended to determine the exact angular position of the lamp.
  • the disadvantage here is that to determine the radial position and the angular position of the lamp on the lamp support two resilient tongues are formed and the opening in the lamp support is adapted with its inside to the shape of the outline of the flange of the base having the positioning tab. Furthermore, a further resilient holding element is necessary for locking the lamp in the direction of the lamp axis, which can be a holding spring, for example, which presses the flange of the base against the contact surface of the lamp holder. In addition, an exact position of the filament of the lamp towards the reflecting surface of the reflector is not certain even if the lamp is exactly aligned with the lamp holder is because this is a separate part and must itself be aligned with the reflecting surface of the reflector.
  • a vehicle headlight with a device has become known, by means of which a lamp in the opening of a separate lamp holder can be locked radially and axially by a single resilient holding element.
  • the resilient holding element is a curved resilient sheet metal strip, which rests with its free end section on an edge of a base plate and presses the base plate both axially and radially with this edge. So that the base plate does not lift off its contact surface on the side opposite the resilient holding element, it is inserted on this side into a radially open recess of the lamp holder. As a result, a rattle-free tight fit of the lamp on the lamp holder is not secure. In addition, it is not possible to align the separate lamp holder exactly with the reflection surface of the reflector.
  • a device of a vehicle headlight which has become known from DE 39 33 347 A1, has a U-shaped retaining spring made of wire, by means of which the lamp can be locked both radially and axially in an opening of the reflector.
  • the retaining spring straddles the base of the lamp with its two legs and presses it axially with both legs against a contact surface of the reflector.
  • both legs Between a pivot bearing of the retaining spring and a cylindrical base section, both legs have a bend that reduces their distance from one another. With one side of the bend, both legs rest against the cylindrical base section of the lamp and press it away from the pivot bearing of the retaining spring and thus in the direction of the longitudinal extension of the legs.
  • the deflections of the two legs must always be precisely tolerated so that it is certain that both legs rest on the cylindrical base of the lamp, since otherwise the lamp would be pressed in an undesired radial direction.
  • the resilient holding element spans the base off-center and is supported with both end sections on an abutment both in the radial and in the axial direction of the lamp axis.
  • the resilient holding element is U-shaped, with both legs pressing the base axially against the surface and radially against the fixing element. As a result, the lamp is held very securely both radially and axially.
  • the holding element is sprung apart with its legs when the lamp is mounted and the two free end sections of the U-shaped holding element can each be inserted into a slot-like recess, the two recesses facing open sides and the resilient holding element around the the leg connecting web is pivotable.
  • the fixing element is formed by the tool half that forms the reflection surface of the reflector. As a result, the lamp is aligned very precisely to the reflection surface of the reflector.
  • a bowl-shaped reflector (2) made of plastic has a circular opening (3) in the region of its apex.
  • a lamp (1) is inserted into the opening (3) and can be held in the opening (3) by a resilient holding element (10).
  • the lamp (1) has a cylindrical base (5) made of sheet metal.
  • a glass bulb (25) enveloping a filament (24) is attached to a cover surface of the cylindrical base (5), while the other is attached Cover surface of the cylindrical base (5) serving as electrical contact connections are attached connector tabs (26).
  • the cylindrical base (5) has a base plate (27) which is directed radially outwards with its circumferential free edge.
  • An annular groove (19) is introduced into the base plate (27) on the side facing the electrical connector lugs (26), and three are evenly distributed over the circumference of the base plate (27) in the free edge section adjoining the annular groove (19) Troughs are introduced, which extend radially to the lamp axis (7) in their longitudinal extent and with their outer side facing the glass bulb (25) serve as contact points (6) for the lamp (1).
  • the contact points (6) are the tips of an equilateral triangle (30), through the center of gravity of which the lamp axis (7) runs approximately.
  • One of the contact points (6) is assigned a positioning tab (8) which is formed by two right-angled free cuts made in the outer edge section of the base plate (27). The positioning tab (8) points radially outwards with its free end.
  • a recess (20) is made in each of the protrusions (32), said recesses facing towards one another with open sides and receiving the free end sections of the legs (17, 18).
  • the legs (17, 18) are bent towards their free end towards an eyelet (33) which serves as a handle for releasing the holding element (10).
  • an eyelet (33) which serves as a handle for releasing the holding element (10).
  • the holding element (10) with its free end sections must be pivoted towards the lamp (1) and, when the two eyelets (33) are pressed together, between the two lugs (32) swing. After releasing the two eyelets (33), the two end sections of the legs (17, 18) each spring into one of the recesses (20) of the projections (32). The lamp (1) is then locked on the reflector (2).
  • Both legs (17, 18) are bent in the area of the base plate (27) towards the base plate (27) and engage in the annular groove (19) of the base plate (27).
  • the leg (17) adjacent to the positioning tab (8) lies against the base of the annular groove (19) with a spring force (12) running in the direction of the lamp axis (7) and with a spring force (13) running radially to the lamp axis (7). , which coincides approximately with the line (14) on the inner inside (34) of the annular groove (19).
  • the spring force (12, 13) serves as a pivot bearing approach (18) and the free end portion of the leg (17) receiving projection (32) as an abutment (15 and 16).
  • FIG 4 shows a pressure surface (23) with which the leg (17) presses radially against the inside (34) of the base (5).
  • two pressure surfaces (35) are shown with which the legs (17, 18) press against the bottom of the annular groove (19).
  • the leg (18) with its bend engaging in the annular groove (19) bears with two pressure surfaces (22) on the outer edge of the annular groove (19).
  • the lamp (1) is locked without the leg (18) both radially and axially in the opening (3), since the pressure surfaces (23 and 35) of the leg (18) lie in the equilateral triangle (30), the tips of which are formed by the bearing points (6) of the lamp (1), and lie on the line (14), which is the axis of symmetry to the isosceles triangle (29), the tips of which Fixing points (11) and the positioning tab (8) is formed.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
EP95106639A 1994-05-13 1995-05-03 Projecteur de véhicule automobile avec dispositif de fixation de l'ampoule Expired - Lifetime EP0682208B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4416925 1994-05-13
DE4416925A DE4416925C1 (de) 1994-05-13 1994-05-13 Vorrichtung zur Halterung einer Lampe an einem Reflektor eines Fahrzeug-Scheinwerfers

Publications (2)

Publication Number Publication Date
EP0682208A1 true EP0682208A1 (fr) 1995-11-15
EP0682208B1 EP0682208B1 (fr) 1999-08-11

Family

ID=6518073

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95106639A Expired - Lifetime EP0682208B1 (fr) 1994-05-13 1995-05-03 Projecteur de véhicule automobile avec dispositif de fixation de l'ampoule

Country Status (4)

Country Link
US (1) US5651603A (fr)
EP (1) EP0682208B1 (fr)
AT (1) ATE183298T1 (fr)
DE (2) DE4416925C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6708836B2 (en) 1998-11-18 2004-03-23 Steiner Technology Gmbh Container consisting of a plurality of plates

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5855430A (en) * 1997-02-21 1999-01-05 Osram Sylvania Inc. Vehicle headlamp assembly
US6056405A (en) * 1998-10-15 2000-05-02 In Focus Systems, Inc. Lamp module with kinematic mount
JP2000149621A (ja) * 1998-11-16 2000-05-30 Koito Mfg Co Ltd 車両用前照灯
DE19855411A1 (de) * 1998-12-01 2000-06-08 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrische Lampe
CN1401067A (zh) * 2000-12-11 2003-03-05 皇家菲利浦电子有限公司 反光灯
DE10140267B4 (de) * 2001-08-16 2007-02-01 Hella Kgaa Hueck & Co. Scheinwerfer für Fahrzeuge
DE20301294U1 (de) * 2003-01-28 2004-06-09 Automotive Lighting Reutlingen Gmbh Beleuchtungseinrichtung für Fahrzeuge
US8760589B2 (en) * 2007-05-03 2014-06-24 Seiko Epson Corporation Retention of a replaceable part within a device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2669400A1 (fr) * 1990-11-15 1992-05-22 Valeo Vision Dispositif de fixation d'une lampe sur un reflecteur de projecteur.

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2853227A1 (de) * 1978-12-09 1980-06-19 Daimler Benz Ag Befestigung einer gluehfadenlampe an einem reflektor eines fahrzeugscheinwerfers
DE3433347A1 (de) * 1983-03-24 1985-10-03 Niedermayr Papierwarenfabrik Ag, 8200 Rosenheim Vorrichtung zur herstellung von faltbodensaecken
GB8330925D0 (en) * 1983-11-19 1983-12-29 Lucas Ind Plc Retaining device
DE3713330C2 (de) * 1987-04-21 1993-12-23 Hella Kg Hueck & Co Glühlampenhalterung für Kraftfahrzeugscheinwerfer
FR2626062B1 (fr) * 1988-01-15 1990-05-04 Cibie Projecteurs Systeme de verrouillage et de deverrouillage d'une lampe sur un porte-lampe, plus particulierement pour un dispositif d'eclairage ou de signalisation notamment de vehicule automobile
FR2630193B1 (fr) * 1988-04-19 1990-07-20 Ficea Systeme de montage de lampes de differents types sur le reflecteur d'un projecteur
DE3826106A1 (de) * 1988-08-01 1990-02-08 Hella Kg Hueck & Co Fahrzeugscheinwerfer
US4933819A (en) * 1988-09-15 1990-06-12 Hella Kg Hueck & Co. Apparatus for mounting a bulb in a reflector opening of a headlight
DE3933347A1 (de) * 1989-10-06 1991-04-11 Hella Kg Hueck & Co Vorrichtung zur befestigung einer in die oeffnung eines reflektors eingesetzten gluehlampe eines fahrzeugscheinwerfers
DE9104169U1 (de) * 1991-04-06 1992-07-30 Robert Bosch Gmbh, 7000 Stuttgart Scheinwerfer für Kraftfahrzeuge
JPH0617003U (ja) * 1992-06-12 1994-03-04 スタンレー電気株式会社 車両用前照灯の電球取付部

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2669400A1 (fr) * 1990-11-15 1992-05-22 Valeo Vision Dispositif de fixation d'une lampe sur un reflecteur de projecteur.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6708836B2 (en) 1998-11-18 2004-03-23 Steiner Technology Gmbh Container consisting of a plurality of plates

Also Published As

Publication number Publication date
DE59506565D1 (de) 1999-09-16
US5651603A (en) 1997-07-29
ATE183298T1 (de) 1999-08-15
DE4416925C1 (de) 1995-06-01
EP0682208B1 (fr) 1999-08-11

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